Snow-guard for roofs.



J. M. LAIRD.

SNOW GUARD FOR HOOPS.

APPLICATION FILED JAN. 7, 1909.

939,5 1 6. Patented Nov. 9, 1909.

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SNOW GUARD FOR ROOFS.

APPLIOATIOH FILED JAN. 7, 1909.

Patented Nov. 9, 1909.

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SNOW-GUARD FOR ROOFS.

, Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed. January 7,1909. Serial No. 471,168.

To all whom it may concern:

Be it known that I, JOHN M. LAIRD, a citizen of the United States,residing at Huntingdon, in the county of Huntingdon and State ofPennsylvania, have invented certain new and useful Improvements in Snow-Guards for Roofs; and I do declare the following to be afull, clear, andexact description of the invention, such as will enable othersskilled'in the art to which it appertains to make and use the same.

This invention relates to improvements in snow guards for roofs.

The object of the invention is to provide a snow guard having animproved form of supporting bracket whereby the guard may be secured toand detachably held in operative position on the roof.

A further object is to provide a support ing bracket for snow guardswhich will be strong, durable and artistic in construction, eflioientand reliable in operation and well adapted to the purpose for which itis designed.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrange ment of parts aswill be described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a side elevation showing theapplication of the invention; Fig. 2 is a front elevation of the same;Fig. 3 is a vertical sectional view on the line 33 of Fig. 2 on anenlarged scale; Fig. 4 is a detail perspective view of the bracket; Fig.5 is a vertical sectional view showing a modified form of guard; Fig. 6is a vertical cross sectional view of the bracket showing a modifiedform of the guard, the latter being shown in the form of a panel; Fig. 7is a plan view of the panel used in the form shown in Fig. 6; Fig. 8 isa detail sectional view on the line 88 of Fig. 6; and Fig. 9 is a planview of the panel detached.

In the embodiment of the invention I provide a bracket, 1, comprising abase or attaching member, 2, consisting of a bar, 3, having at its upperend a right-angular downwardly-projecting spur, 4, which is adapted to,be driven into the roof, and which is also provided adjacent to itsupper end with one or lnore screw holes adapted to receive fasteningscrews whereby the same may be more rigidly secured to the roof. Nearthe opposite end of the bar, 3,

and projecting approximately at right-angles to the operative positionof the base is a guard supporting bracket, 5. Said bracket is providedwith a brace, 6, which may be of an ornamental or any suitable design.The brace, 6, has formed at suitable intervals along its length a seriesof semi-circular seats 7, the purpose of which will here inafter appear.At its upper end the brace, 6, is provided with an inwardly projectingor overhanging extension, 8, in which is formed an aperture. Adjacent tothe lower end of the brace 6 and spaced a suitable distance therefromon-the bar, 3, is an upwardly projecting lug, 9, on the upper end ofwhich is formed an inwardly projecting spur, 10, and midway between thespur l0 and the base, 2, is formed a guard supporting bar, 12, said barbeing preferably cast integral with the bracket and has formed thereinan aperture, 13, the purpose of which will hereinafter appear.

In the form of the invention shown in Figs. 1, 2 and 3, of the drawings,the guard comprises a series of longitudinally disposed bars, 14, whichare here shown in the form of cylindrical metal rods, one of which isseated in each of the seats, 7 of the brace, 6,

said rods or bars being connected at their opposite ends by ornamentalcastings, 15, and at suitable intervals along their length by ornamentalcastings, 16. The bars 14 are held in operative position in the seats 7by means of a pin, 17 which is inserted through the aperture in theextension 8 and bar, 12, whereby the bars, 14, are held in operativeposition across the roof.

In the form of the invention shown in Fig. 5 I employin lieu of thebars, 14:, a board, 18, which is adapted to be supported in operativeposition on the bracket in place of said bars by means of the bar, 12,and to be held in operative position on the bracket by means of thespur, 10, which is engaged with the inner side of the board adjacent toits lower edge, and which is further held in operative position by meansof a screw driven through the brace 6 of the bracket, and into saidboard. The spur, 10, is provided to hold the board in operative positionin the event the fastening screw in the upper end of the bracket shouldbecome loosened ordisengaged from the board.

In Figs. 6, 7, 8 and 9 is shown another modified. construction of theguard in which a series of panels, 19, is employed in place of the guardrods or board hereinbefore dehole adjacent to the upper end of thebracket bar.

By means of a bracket constructed as hereinbeiore described, it will beseen that I have provided means whereby different forms of guards may besupported in operative positions upon a roof to effectively preventquantities of snow or ice from sliding therefrom and thus endangeringthe lives of pedestrians beneath the same.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood with out requiring a more extendedexplanation. Various changes in the form, proportion and the minordetails of construction may be resorted to without departing from theprinciple or sacrificing any of the advan tages of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters-Patent, is:

1. A snow guard comprising base plates,

upright guard supporting brackets formed at the outer ends of saidplates, said brackets comprising rear vertical members provided alongtheir bodies with outwardly bent portions forming seats and at theirupper ends with inwardly projecting extensions, a plurality ofcylindrical guards seated in the outwardly bent portions of thebrackets, horizontal supporting bars near the lower ends of the rearvertical pieces of the brackets, and vertical keeper pins insertiblethrough the extensions and supporting bars of the supporting bracketsand adapted to hold the guards in position.

2. A snow guard comprising a base plate, an upright guard supportingbracket at the outer end of said plate, said bracket comprising a rearvertical member provided along its body with a series of outwardly bentportions forming semi circular seats and at its upper end with aninwardly extending extension, a rearwardly extending horizontalsupporting bar near the lower end of the rear vertical member of thebracket, and a keeper pin insertible through the extension of thebracket and said horizontal supporting bar.

Intestimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN M. LAIRD.

\Vitnesses R. A. ORBISON, H. B. DUNN.

